A second state example of a map first seen in the 1610 first edition of the Speculum of Franz Ritter, a German mathematician and astronomer, it is a projection that takes the North Pole as its centre, as if it were a sundial, with landmasses drawn to scale in proportion to their distance from that point.
‘Sundial’ distorts view of the world
Highly unusual, not to say confusing, but mathematically correct is the view of the world as seen in this untitled map of 1640 that made £4500 in a Dominic Winter (19.5% buyer’s premium) sale of March 1.